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ath9k: downgrade ASSERT() in ath_clone_txbuf() 

We can easily run out of tx buf if there is any stuck in
transmission, so downgrade it to WARN_ON().

Signed-off-by: Vasanthakumar Thiagarajan <vasanth@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Vasanthakumar Thiagarajan 2009-06-10 17:50:09 +05:30 committed by John W. Linville
parent c3d8f02ed9
commit 8a46097a6c
1 changed files with 6 additions and 0 deletions
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6
drivers/net/wireless/ath/ath9k/xmit.c
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@ -238,6 +238,10 @@ static struct ath_buf* ath_clone_txbuf(struct ath_softc *sc, struct ath_buf *bf)
struct ath_buf *tbf;
spin_lock_bh(&sc->tx.txbuflock);
if (WARN_ON(list_empty(&sc->tx.txbuf))) {
spin_unlock_bh(&sc->tx.txbuflock);
return NULL;
}
ASSERT(!list_empty((&sc->tx.txbuf)));
tbf = list_first_entry(&sc->tx.txbuf, struct ath_buf, list);
list_del(&tbf->list);
@ -379,6 +383,8 @@ static void ath_tx_complete_aggr(struct ath_softc *sc, struct ath_txq *txq,
struct ath_buf *tbf;
tbf = ath_clone_txbuf(sc, bf_last);
if (!tbf)
break;
ath9k_hw_cleartxdesc(sc->sc_ah, tbf->bf_desc);
list_add_tail(&tbf->list, &bf_head);
} else {